Comparison of the foreground reddenings determined from a map constructed from the OSG data and our extinction map constructed from all of the cool stars (LMC and Galactic). Pixel values are binned according to the OGS extinction value, and averages of the pixels from our map are plotted (error bars are the dispersions of the mean). The correlation is evident, indicating that structures seen in the Galactic foreground map are also evident in the LMC data, despite that lack of an apparent correlation in the extinctions of individual stars (Fig. 8).